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Finding the Fourth Proportional to 618,554.65, 926,256.90 and 407,552.89

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Solution

The fourth proportional to 618,554.65, 926,256.90 and 407,552.89 is: 610,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,554.65 : 926,256.90 = 407,552.89 : x
  2. Step 2: Convert to fraction form
    618,554.65/926,256.90 = 407,552.89/x
  3. Step 3: Cross multiply
    618,554.65x = 926,256.90 × 407,552.89
  4. Step 4: Simplify right side
    618,554.65x = 377,498,676,477.44
  5. Step 5: Solve for x
    x = 377,498,676,477.44/618,554.65
  6. Step 6: Final answer
    x = 610,291.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.